Merge branch 'openapi' into 'master'

[sphinx-openapi] increased the version of sphinxcontrib-openapi to include new feature

Closes #535

See merge request !305
2 jobs for master in 29 minutes and 10 seconds (queued for 8 seconds)
Status Job ID Name Coverage
  Build
passed #172363
docker-build
build_linux_36

00:18:32

67.0%
 
  Deploy
passed #172364
docker
deploy_beta

00:10:38